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本文(ETSI GSM 08 01-1996 Digital Cellular Telecommunications System Base Station System - Mobile-Services Switching Centre (BSS - MSC) Interface General Aspects (GSM 08 01)《数字蜂窝通信系统 基站系.pdf)为本站会员(李朗)主动上传,麦多课文库仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知麦多课文库(发送邮件至master@mydoc123.com或直接QQ联系客服),我们立即给予删除!

ETSI GSM 08 01-1996 Digital Cellular Telecommunications System Base Station System - Mobile-Services Switching Centre (BSS - MSC) Interface General Aspects (GSM 08 01)《数字蜂窝通信系统 基站系.pdf

1、GSM 08.01 November 1996 Version 5.0.0 Source: ETSI TC-SMG Reference: TS/SMG-030801 Q ICs: 33.020 Key words: Digital cellular telecommunications system, Global System for Mobile communications (GSM) GLOBAL SYSTEM FOR MOBILE COMMUNICATIONS Digital cellular telecommunications system; Base Station Syste

2、m - Mobile-services Switching Centre (BSS - MSC) interface; General aspects (GSM 08.01) ETSI European Telecommunications Standards Institute ETSI Secretariat Postal address: F-O6921 Sophia Antipolis CEDEX - FRANCE Office address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE X.400: c

3、=fr, a=atlas, p=etsi, s=secretariat - Internet: secretariat Q etsi.fr Tel.: +33 4 92 94 42 O0 - Fax: +33 4 93 65 47 16 Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. Q Euro

4、pean Telecommunications Standards Institute 1996. All rights resewed. Page 2 GSM 08.01 Version 5.0.0: November 1996 Whilst every care has been taken in the preparation and publication of this document, errors in content, typographical or otherwise, may occur. If you have comments concerning its accu

5、racy, please write to ETSI Editing and Committee Support Dept.“ at the address shown on the title page. Page 3 GSM 08.01 Version 5.0.0: November 1996 Contents Foreword . 5 O Scope 7 0.1 Normative references 7 0.2 Abbreviations . 7 1 A-Interface capabilities 7 2 A-Interface specification objectives .

6、 8 3 A-lnterface characteristics . 8 4 Other specifications on the MSC-BSS interface . 9 4.1 GSM 08.02 Interface Principles . 9 4.2 GSM 08.04 Layer 1 . Specification 9 4.3 GSM 08.06 Signalling Transport Mechanism . Specification . 9 4.4 GSM 08.08 Layer 3 Specification 9 4.5 GSM 08.20 Rate adaption o

7、n the BSS-MSC interface 10 History 11 Page 4 GSM 08.01 Version 5.0.0: November 1996 Blank page Page 5 GSM 08.01 Version 5.0.0: November 1996 Foreword This Global System for Mobile communications Technical Specification (GTS) has been produced by the Special Mobile Group (SMG) Technical Committee (TC

8、) of the European Telecommunications Standards Institute (ETSI). This GTS gives the general aspects Base Station System (BSS) to Mobile-services Switching Centre (MSC) interface within the digital cellular telecommunications system The contents of this GTS are subject to continuing work within TC-SM

9、G and may change following formal TC-SMG approval. Should TC-SMG modify the contents of this GTS it will then be republished by ETSI with an identifying change of release date and an increase in version number as follows: Version 5.x.y where: y the third digit is incremented when editorial only chan

10、ges have been incorporated in the specification; the second digit is incremented for all other types of changes, .e. technical enhancements, corrections, updates, etc. x The specification from which this GTS has been derived was originally based on CEPT documentation, hence the presentation of this

11、GTS may not be entirely in accordance with the ETSI rules. STD-ETSI GSM 08.OL-ENGL 177b 3400855 01592Li3 bLL = Page 6 GSM 08.01 Version 5.0.0: November 1996 Blank page STD-ETSI GSM OB*OL-ENGL L77b 3400855 OL5924Li 558 Page 7 GSM 08.01 Version 5.0.0: November 1996 O Scope This Global System for Mobil

12、e communications Technical Specification (GTS) is an introduction to the GSM 08.0X series of Technical Specifications and deals with the definition of the Base Station System (SSS) to Mobile Switching Centre (MSC) (referred to as the A-interface) defined for the GSM system. It also introduces Techni

13、cal Specifications in the GSM 08.20 series, dealing with the support of data services on this interface. This GTS gives an overview of the content of the GSM 08.0X and GSM 08.20 series of Technical Specifications explaining how the detailed content of the Technical Specifications is partitioned and

14、how the Technical Specifications can be used to support a full BSS-MSC intedace. 0.1 Normative references This GTS incorporates by dated and undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are list

15、ed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this GTS only when incorporated in it by amendment or revision. For undated references, the latest edition of the publication referred to applies. Abbreviations GSM O1 .O4 (ETR 350): “Digi

16、tal cellular telecommunications system (Phase 2+); Abbreviations and acronyms“. CCITT Recommendation G.703: “Physical/electricaI characteristics of hierarchical digital interfaces“. GSM 04.08 (ETC 300 940): “Digital cellular telecommunications system (Phase 2+); Mobile radio interface layer 3 specif

17、ication“. GSM 04.21 (ETS 300 945): “Digital cellular telecommunications system; Rate adaption on the Mobile Station - Base Station System (MS - BSS) interface“. GSM 08.02: “Digital cellular telecommunications system; Base Station System - Mobile-services Switching Centre (BSS - MSC) interface; Inter

18、face principles“. GSM 08.04: “Digital cellular telecommunications system; Base Station System - Mobile-services Switching Centre (BSS - MSC) interface; Layer 1 specification“. GSM 08.06: “Digital cellular telecommunications system; Signalling transport mechanism specification for the Base Station Sy

19、stem - Mobile-services Switching Centre (BSS - MSC) interface“. GSM 08.08: “Digital cellular telecommunications system (Phase 2+); Mobile Switching Centre - Base Station System (MSC - BSS) interface; Layer 3 specif ication“. GSM 08.20: “Digital cellular telecommunications system; Rate adaption on th

20、e Base Station System - Mobile-services Switching Centre (BSS - MSC) in terface“. Abbreviations used in this GTS are listed in GSM O1 .O4 1 A-Interface capabilities The BSS-MSC interface shall be capable of supporting all the services offered to GSM users and subscribers. In addition it also allows

21、for the allocation of suitable radio resources within the PLMN, and the operation and maintenance of those resources. STD-ETSI GSM OA-OL-ENGL L77b m 3400855 0357245 474 m Page 8 GSM 08.01 Version 5.0.0: November 1996 2 A-interface specification objectives The MSC to BSS interface specifications shal

22、l allow the following: i) Connection of various manufacturers BSSs to the same MSC; i) iii) iv) v) vi) The use of several manufacturers MSCs to the same type of BSS; The use of the same BSS in any PLMN; The use of the same MSC in any PLMN; The separate evolution of MSC and BSS technology, and; The s

23、eparate evolution of O vi) viii) Evolution towards lower speech coding rates; Support of all services defined in the GSM 02 series of Technical Specifications. 3 A-Interface characteristics The interface is defined to be at the boundary of the MSC. The MSC to BSS interface is specified by a set of c

24、haracteristics, including: i) Physical and electromagnetic parameters; i) Channel structures; iii) Network operating procedures; iv) Operation and Maintenance information support. The definition of the MSC to BSS interface follows a layered approach similar to that in the ISDN. Layer 3 is for the mo

25、st part based on GSM 04.08 with additional procedures added for the control of radio resources and the identification of transactions using the SCCP. Layer 2 is based on the signalling system N0.7 (SS No.7) Message Transfer Part (MTP). Layer 1 is either digital (at 2 048 kbitls, based on CCITT Recom

26、mendation G703 section 6) or analogue with the data being passed by the use of modems (this latter case is a national option). Page 9 GSM 08.01 Version 5.0.0: November 1996 4 Other specifications on the MSC-BSS interface The full structure of the Technical Specifications specifying the MSC to BSS li

27、nk are as follows: 4.1 GSM 08.02 Interface Principles This Technical Specification deals with the functional split between the BSS and the MSC. This functional split is then supported by the other Technical Specifications in the GSM 08.0X series. GSM 08.02 also contains some information on the place

28、ment of transcoders/rate adapters, these being functionally part of the BSS though a degree of freedom is allowed in their geographical location. Lastly GSM 08.02 explains the use of transparent and non transparent signalling information across the interface. The key point is that the majority of ca

29、ll related signalling from the MS is passed in a fairly transparent way through the BSS. 4.2 GSM 08.04 Layer 1 - Specification This Technical Specification defines the physical layer at the BSS-MSC interface point. The physical interface chosen is a 2 Mbits/s (32*64 kbitsls) interface according to t

30、he standard CCIlT recommendations. The speech coding called up in this Technical Specification is standard A-law, coding of the traffic bit streams for data calls is dealt with in GSM 04.21 and GSM 08.20. 4.3 GSM 08.06 Signalling Transport Mechanism - Specification In order to pass the signalling in

31、formation between BSS and MSC some reliable transport mechanism has to be used. The basis of the transport mechanism is an internationally agreed protocol known as signalling system No.7. Several services are required from this protocol but two key requirements are that messages can be transferred b

32、etween the BSS and MSC without corruption, and secondly that a transaction with a particular mobile can be identified. The correct transfer of messages without corruption is handled by the “Message Transfer Part“ of SS No.7 and this is documented in GSM 08.06 which is an exceptions document to the C

33、CIlT specification. The subset so formed is designed so that it is compatible with a “full“ MTP such as might be provided at an MSC. The identification of the transaction involved implies some form of logical connection. This is achieved by using the signalling connection control part (SCCP) of SS N

34、o.7. Again a minimum subset is formed in order to ease implementation. 4.4 GSM 08.08 Layer 3 Specification In this Technical Specification the application parts are described. There are two currently identified in the BSS to MSC interface protocol, these are the: BSSOMAP; BSSAP. The BSSAP is further

35、 subdivided into two subprotocols, the BSSMAP and the DTAP. The BSSMAP and DTAP are fully defined, the BSSOMAP is only supported in terms of a signalling transport ability. The DTAP text is split between GSM 08.06 and GSM 08.08 but the text in GSM 08.08 defines which layer 3 air interface messages a

36、re passed transparently through the BSS and which are analysed at the BSS. - STD*ETSI GSN OB*OL-ENGL L77b 3i.rOO855 03572q7 2b7 Page 10 GSM 08.01 Version 5.0.0: November 1996 The BSSMAP (Base Station System Management Application Part) is that part of the protocol responsible for all aspects of the

37、radio resource handling at the BSS. The text is structured as a set of procedures which are defined separately and can be employed as felt appropriate by the operator/manufacturer to meet the requirements of the application in which it is being used. The procedures themselves can be driven in differ

38、ent modes depending upon the input parameters received from the MSC or sent from the OMC. The BSSOMAP (Base Station System Operation and Maintenance Application Part) supports all of the O and M communications for the BSS with either the MSC or the BSS. The actual detailed protocol at layer 3 is def

39、ined in the 1Fseries of GSM Technical Specification. 4.5 GSM 08.20 Rate adaption on the BSS-MSC interface This Technical Specification describes the means by which the radio interface data rates are adapted to the 64 kbits/s needed at the MSC and vice versa, down to the bit level. STD*ETSI GSM 08.OL

40、-ENGL 1776 3400855 035721.18 IT3 SMG No. TDoc. CR. No. Section New SMG#16 605195 A003 A.1.8 5.0.0 SMG#17 52/96 Amr1 Table 2 5.1 .O SMG#20 577196 A005 D.2, D.2.5 5.2.0 No. affected version 609196 A006 6.1, Table 2 Page 11 GSM 08.01 Version 5.0.0 November 1996 SubjecVComments Data compression Addition of handling for VBS and VCGS Updating to account for EFR codec channels General Bearer Services November 1996 Publication of Version 5.0.0 ISBN 2-7437-1 179-5 Dpt lgal : Novembre 1996

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